Indiana State Board of Animal Health

Accidental antibiotic drug residues can result from a number of circumstances. Most incidents fall in four categories, which could be prevented with proper care and precautions. The following list is an overview of the most common sources of drug residue contamination by category.

IMPROPER CLEANING

milked a treated cow into a bucket, but did not rinse the claw and teat cup

rinsed weigh jar and line improperly after milking a treated cow

milked a treated cow into a bucket and continued to use the bucket without rinsing